Wonder is the first of all the passions.
The principal effect of the passions is that they incite and persuade the mind to will the events for which they prepared the body.
The principal use of prudence, of self-control, is that it teaches us to be masters of our passions, and to so control and guide them that the evils which they cause are quite bearable, and that we even derive joy from them all.
A person has two passions for love and abhorrence. A big disposition to excessiveness has just a love, because it is more ardent and stronger.
Even those who have the weakest souls could acquire absolute mastery over all their passions if we employed sufficient ingenuity in training and guiding them.